On-demand cooling system for a beverage dispenser

An on-demand cooling system for a beverage dispenser, comprising:

• a refrigeration system, comprising:
• a first evaporator zone, a second evaporator zone, and a third evaporator zone, and
• a refrigeration unit configured to circulate a refrigerant through the first evaporator zone, the second evaporator zone, and the third evaporator zone;
• a cooling enclosure disposed about the first evaporator zone, the cooling enclosure being configured to receive water therethrough, whereby the first evaporator zone chills the water flowing through the cooling enclosure prior to the water exiting the cooling enclosure;
• a first cooling chamber including the second evaporator zone therein, the first cooling chamber being configured to receive chilled water flowing from the cooling enclosure, whereby the second evaporator zone chills the water within the first cooling chamber prior to the water exiting the first cooling chamber;
• and
• a second cooling chamber including the third evaporator zone therein, the second cooling chamber being configured to receive chilled water flowing from the first cooling chamber, whereby the third evaporator zone chills the water within the second cooling chamber, thereby providing chilled water for the beverage dispenser.

A method of on-demand cooling in a beverage dispenser, comprising:

• circulating a refrigerant through a first evaporator zone, a second evaporator zone, and a third evaporator zone;
• flowing water through a cooling enclosure disposed about the first evaporator zone, whereby the first evaporator zone chills the water flowing through the cooling enclosure prior to the water exiting the cooling enclosure;
• flowing water from the cooling enclosure into a first cooling chamber having the second evaporator zone therein, whereby the second evaporator zone chills the water within the first cooling chamber prior to the water exiting the first cooling chamber;
• and
• flowing water from the first cooling chamber into a second cooling chamber having the third evaporator zone therein, whereby the third evaporator zone chills the water within the second cooling chamber, thereby providing chilled water for the beverage dispenser.